Anker 733 Power Bank: The best portable charger / power bank for your device

The Anker 737 PowerBank features a 24,000mAh capacity, supporting up to 140W fast charging through its dual USB-C ports and a USB-A port. It includes advanced charging technologies like PowerIQ 3.0 and VoltageBoost, along with a digital display for real-time battery monitoring.


  • High capacity 24,000mAh battery offers multiple charges for smartphones and tablets
  • Supports up to 140W output, enabling quick charging for devices, including laptops
  • Equipped with two USB-C ports and one USB-A port for versatile charging options
  • Features PowerIQ 3.0 and VoltageBoost for efficient and optimized charging
  • Sturdy construction with high-quality materials ensures longevity
  • Includes a digital display for real-time monitoring of battery status and output


  • Larger and heavier than many portable power banks, making it less convenient for travel
  • Higher cost compared to other power banks with similar capacities
  • Not all devices can utilize the maximum 140W output, potentially overkill for some users
  • Can get warm during high-power output, which might be concerning for some users
  • Lacks wireless charging capability, which some users might prefer

The massive 86.4Wh battery of the Anker 737 Power Bank, also referred to as the PowerCore 24K, allows users to keep their gadgets charged while travelling. The 737 Power Bank is incredibly easy to use and compact to fit into a backpack thanks to its clear OLED screen and slim design.

The Anker 737 Power Bank’s most notable feature is its incredibly strong two-way charging. With its powerful Power Delivery 3.1 and bi-directional technology, this portable charger can quickly refuel itself and provide a powerful 140W of power to your gadgets. Whether you have a notebook PC, a few phones, or tablets that use a lot of power, this takes care of everything.

The Anker 737 Power Bank contains a large 24,000mAh or 86.4Wh battery, which is less than the 100Wh limit, making it safe to fly with. It can charge an iPhone 13 nearly 5 times and a 2021 iPad Pro 12.9″ 1.3 times. For many smaller notebooks, you should be able to get a solid single charge from this battery.

In terms of connectivity, the Anker 737 Power Bank has three USB ports. It features two USB-C ports and one USB-A port, allowing you to charge multiple devices at the same time. The USB-C ports can deliver up to 140W of power, while the USB-A ports provide 5V ⎓ 3A, 9V ⎓ 2A, and 12V ⎓ 1.5A outputs. This port combination makes it suitable for a variety of devices.

Cell Capacity24000mAh (4000mAh*6pcs)
USB-C 1 Input5V 3A / 9V 3A / 15V 3A / 20V 5A / 28V 5A (140W Max)
USB-C 1 / USB-C 2 Output5V 3A / 9V 3A / 15V 3A / 20V 5A / 28V 5A (140W Max)
USB-A Output5V 3A / 9V 2A / 12V 1.5A (18W Max)
Total Output140W Max

In terms of build quality, the Anker 737 Power Bank has a nice smooth finish and a fully flush display on top. Given its size, it’s not too difficult to hold, with a longer, thinner design rather than a larger brick shape. The build feels solid, and our sample has withstood a few drops with no ill effects. It is heavy, but that is to be expected given the large battery.

Anker makes the 737 Power Bank simple to use, as shown by its single button and basic OLED screen. The display shows real-time information about output and input power, allowing you to track the charging progress. It also estimates the time it takes for the power bank to fully recharge or discharge, allowing you to better plan and manage your charging needs.

The screen in the advanced section will display the number of charge cycles completed by the battery, as well as its overall health, current temperature, and other useful power statistics. If you want to change whether the screen goes to sleep automatically or stays on all the time, you can do so.

The Anker 737 Power Bank is a compact device that provides both impressive capacity and charging capability. The 737 Power Bank supports Power Delivery 3.1 and has a bidirectional USB-C port, allowing it to quickly charge itself or deliver up to 140W of power to connected devices.

The 24,000mAh/86.4Wh battery provides enough power to keep your devices running in the field, while the OLED digital display provides useful information about your charging progress. With three USB ports, a sturdy build, and a large battery, the Anker 737 Power Bank is an excellent tool to keep devices running when you’re away from home or the office.